Caster



.(o Model.)

W. & G. THOMSON.

OIL PEEDING DEVICE FOR JOURNALS.

No. 459,084. Patented Sept. 8, 189,1. Flc, Flc. 2

UNiTEn STATES PATENT OFFICE.

1WILLIAM THOMSON AND GEORGE THOMSON, OF SHAW?, COUNTY OF LAN- CASTER, ASSIGNORS TO JOHN GREENXVOOD COMPANY, LlMI'l`ED,`OF HOPE MILL, ENGLAND.

OIL-FEEDING DEVICE FOR JOURNALS.

SPECIFICATION forming part of Letters Patent No. 459,084; dated September 8, 1891.

Application iiled January 21,1891. Serial No. 378,604. (No model.) Patented in England July 13, 1889,No.11,257.

To @ZZ whom t may concern: terminates with a cross-head or fork-shaped Be it known that We, WILLIAM THOMSON piece h. Between the jaws of the cross-head and GEORGE THOMSON, subjects of the Queen is mounted eccentrically a disk i upon the of Great Britain, residing at Crompton Fold, spindle .7., t which it may or may not be 5 Shaw, near Oldham, in the county of Lancaskeyed. The periphery may be provided with r 5 ter, England, have invented new and useful leather or other suitable material. The eX- l Improvements in Oil Feeding, Lifting, and tremities of the spindle j extend beyond the Circulating Apparatus AApplicable to the sides of the cross-head 7L, and immediately Bearings or Journals of Shafts, (forwhich we below the said extremities and in engagexo have obtained a patent in Great Britain, ilo. ment therewith we provide spiral coils or 6o 11,257, bearing date July 13, 1889,) of which springs 7c 7c, situated within hollow standards the following is a specication. Z l, provided with slots m.

The improvements relate to a lubricator, At the -lower extremity of the barrel a we being the subject of a prior patent in Great provide a tail-piece n, in which we provide Britain, No. 237, A. D. 1888, dated January G, a ball or spherical piece 0. To the said tail- 65 granted to George Thomson, one of the appiece n may be attached a tube or pipe p, plicants herein. According to the construcforming connection with the oil-receiver. tion described in specification No. 237, A. D. The action of the apparatus is as follows: 1888, it is essential that the lower part of the Apparatus in accordance with our invention 2o rotating spindle should be immersed in the is to be fixed by any convenient means eon- 7o oil-receiver. Consequently when thereceiver tiguous to a rotating shaft-it may be the is situated at a great distance from the shaft shaft the bearing or bearings of which are or bearing, as the case may be, it is necessary to be lubricatedwbeing fixed in such a manto employ a spindle of great length; but acner that the periphery of the disk may bear cording to the construction of our present against the surface of the shaft. Then the 75 improvements the length of the lifter is not shaft revolves, a reciprocating motion is imdependent upon the situation or distance of parted to the plunger more or less according the receiver with relation to the bearing, as to the throw of the eccentric. The extremithe lubricant is by our improvements raised ties Of the spindle carrying the disk resting 3o or lifted therefrom by the aid of suction. upon the coils or springs causes the periph- 8o XVe attain these objects by the mechanism ery of the disk to bear against the surface of illustrated in the accompanying drawings, in the shaft, thus insuring contact of the disk which-` 1 with the shaft. Oonsequentlythe reciprocat- Figure 1 is a front elevation of apparatus ing motion continues so long as the shaft is arranged in accordance with our invention. in motion. ln consequence of such motion 85 Fig. 2 is in part a sectional view showing the lubricant which may have passed from barrel, piston, and oil-chan1bers, and in part the journal or bearing into the receiver may L Side elevation be drawn therefrom into the chamber in the Similarlet-ters refertosimilarpartsthroughtail-piece, and at each downward stroke of 4o out the several views. the plunger the same passes into the chamber 9o The apparatus shown consists of a barrel in the plunger and out through a thorougha, provided with a chamber b, into which enfare or tube r, terminating at the part to be ters a plunger c. At the lower part of the lubricated. said plunger is provided a chamber d, at the Valia'EiOllS in @Smil and i the mode 0f bottom of which chamber is an orifice e. At giving a reciprocating motion to the plunger 95 the entrance to the orifice e and within the may be made without departing from the chamber d is situated a ball or spherical peculiar character of the invention. piece f. The upperpart of the plunger--that Having now particularly described and asis, the part extending out of the barrel (l` and certained the nature of our said invention 5o above the gland g containing the packingand in what manner the same is to be per- 10o formed, We declare that what we claim as our In an oil feeding, lifting, and circulating oughfare or tube 7' and vertical thoroughfare Io or tube p, for the purpose and in manner all substantially as set forth and described.

Y apparatus, the combination of the frictionj, the rotating driving-shaft, the spiral coils NVILLIAM THOMSON. disk i, eoeentrioaily mounted on the spindle GEORGE THOMSON.

Witnesses:

WILLIAM GADD, ARTHUR GADD.

k, and the moving piston o, with the chambers d and b, the valves f und o, the lateral thor- 

